Add GetReleaseVersion step to set ReleaseVersion variable

script/vsts/get-version.js

@@ -0,0 +1,11 @@
+const path = require('path')
+
+const repositoryRootPath = path.resolve(__dirname, '..', '..')
+const appMetadata = require(path.join(repositoryRootPath, 'package.json'))
+const releaseVersion = appMetadata.version
+
+// Set our ReleaseVersion build variable and update VSTS' build number to
+// include the version.  Writing these strings to stdout causes VSTS to set
+// the associated variables.
+console.log(`##vso[task.setvariable variable=ReleaseVersion;isOutput=true]${releaseVersion}`)
+console.log(`##vso[build.updatebuildnumber]${releaseVersion}+${process.env.BUILD_BUILDNUMBER}`)

script/vsts/stable-beta-release.yml

@@ -3,15 +3,18 @@ trigger:
 
 phases:
 
+- phase: GetReleaseVersion
+  steps:
+  # This has to be done separately because VSTS inexplicably
+  # exits the script block after `npm install` completes.
+  - script: |
+      cd script\vsts
+      npm install
+    displayName: npm install
+  - script: node script\vsts\get-version.js
+    name: Version
+
 # Import OS-specific build definitions
 - template: windows.yml
 - template: macos.yml
 - template: linux.yml
-
-- phase: Release
-  queue: Hosted  # Need this for Python 2.7
-
-  dependsOn:
-  - Windows
-  - Linux
-  - macOS